It seems to be very subjective, perhaps depending on sensitivities of either the viewer or the equipment.

I'm not buying it until Peter Jackson personally and directly addresses the issue with fans. Neither he nor the studio has done that. They've only addressed the color grading - a different issue. If nothing comes of it, I will not be buying it until there is some ultimate Middle Earth EE collection out on Blu-ray for both trilogies. By then it would be fixed or become clear that nothing will ever be done about it.

In the meantime, the single editions of each film are out and those who are bothered by green titles, fades to green (instead of white), and inconsistencies between the green-tinted film and flashbacks in the later films and the disk menus have been buying The Two Towers and Return of the King separately on Blu-ray and watching their existing EE DVD of Fellowship of the Ring. There is no question that the superior images and sound from the Blu-rays are worth the purchase of at least the last two films.